Electric stewpot

Abstract

The utility model discloses an electric stewpot which comprises an outer pot and a ceramic inner container, the outer pot defines a containing cavity used for containing the ceramic inner container, the outer pot is provided with an outer pot bottom wall, an outer pot side wall and a transition section located between the outer pot bottom wall and the outer pot side wall, the outer pot bottom wall is provided with a first heating device, and the outer pot side wall is provided with a second heating device. A part of the area of the bottom wall of the outer pot protrudes upwards to form a supporting boss used for bearing the ceramic inner container, the transition section surrounds the periphery of the supporting boss, and first lines are arranged on the transition section. The first lines are arranged on the transition section, on one hand, the surface of the transition section is of an uneven structure, heat accumulation at the transition section is further facilitated, on the other hand, the surface area of the transition section is increased, the heat transfer area of the transition section is further increased, more heat can be transmitted to the ceramic inner container in a heat radiation mode, and the service life of the ceramic inner container is prolonged. And the heating effect of the part of the ceramic liner corresponding to the transition section is improved, so that each position of the ceramic liner is heated more uniformly.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to an electric stew pot. Background Art

[0002] A direct-stew electric stew pot usually includes an outer pot made of metal and an inner pot placed in the outer pot. A heating element heats the outer pot and transfers heat to the inner pot through heat conduction or heat radiation.

[0003] The inner pot is placed on the bottom wall of the outer pot, and the bottom wall of the outer pot is used to support the inner pot and transfer heat to the inner pot. However, there is a smoothly transitioned curved surface between the bottom wall and the side wall of the outer pot. During the heating process, the curved surface does not contact the inner pot, so the heat here is transferred to the inner pot in the form of thermal radiation.

[0004] However, the curved surface of the outer pot is far from the heating element at the bottom of the outer pot, and the smooth surface is not easy to accumulate heat, so the heat on the curved surface is lower. In addition, the area of ​​the curved surface is small, and the heat transfer efficiency of thermal radiation is low, resulting in less heat transferred to the inner pot, that is, the temperature of the inner pot corresponding to the curved surface is lower, and the heat is unevenly distributed on the inner pot, affecting the cooking effect of food. Utility Model Content

[0005] The utility model provides an electric stew pot to solve the problem that the heat at the curved surface between the bottom wall and the side wall of the outer pot of the electric stew pot is less, resulting in lower heat transferred from this area to the inner pot, making the heat distribution on the inner pot uneven and affecting the cooking effect.

[0006] The technical solution adopted by the utility model is:

[0007] An electric stew pot comprises an outer pot and a ceramic inner pot, wherein the outer pot forms a containing cavity for placing the ceramic inner pot, the outer pot comprises an outer pot bottom wall, an outer pot side wall, and a transition section located between the outer pot bottom wall and the outer pot side wall, the outer pot bottom wall is provided with a first heating device, the outer pot side wall is provided with a second heating device, a part of the outer pot bottom wall bulges upward to form a supporting boss for supporting the ceramic inner pot, the transition section surrounds the outer periphery of the supporting boss, and the transition section is provided with a first pattern.

[0008] The electric stew pot of the utility model also has the following additional technical features:

[0009] The ceramic inner pot is placed on the supporting boss, and there is a gap between the ceramic inner pot and the side wall of the outer pot. The first heating device is arranged on the lower side of the supporting boss to contact and transfer heat to the ceramic inner pot. The second heating device surrounds the outer periphery of the side wall of the outer pot to radiate heat to the ceramic inner pot. The first pattern is located between the first heating device and the second heating device to form a heat collection area in the transition section.

[0010] The transition section has a protruding structure protruding toward the inside of the accommodating cavity, and the protruding structure constitutes the first texture; or, the transition section is provided with a groove structure on one side facing the accommodating cavity, and the groove structure constitutes the first texture.

[0011] The first pattern extends in a direction from the first heating device to the second heating device to form a heat channel extending from the bottom wall of the outer pot to the side wall of the outer pot.

[0012] The first lines extend in a curved manner around the center of the outer pot.

[0013] The first pattern extends along the circumference of the outer pot to surround at least a portion of the supporting boss.

[0014] The outer pot bottom wall also includes a bottom wall body surrounding the outer periphery of the supporting boss, a heat radiation space is formed between the bottom wall body and the ceramic inner pot, and the first pattern extends from the bottom wall body to the transition section.

[0015] The ceramic liner comprises an inner liner bottom wall, an inner liner side wall and an arc section between the inner liner bottom wall and the inner liner side wall. A heat gathering area is formed between the arc section and the transition section. The outer wall of the arc section is provided with a second pattern.

[0016] The first pattern and the second pattern have an overlapping area and a misaligned area, and the projection of the first pattern or the second pattern in the misaligned area toward the outer pot is located on the side wall and the bottom wall of the outer pot.

[0017] The electric stew pot also includes a cover plate arranged in the central area of ​​the supporting boss, and the cover plate and the upper surface of the supporting boss together form a supporting surface for supporting the ceramic liner.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0019] 1. In the utility model, a first heating device is provided on the bottom wall of the outer pot, and a second heating device is provided on the side wall of the outer pot. During the cooking process, the first heating device and the second heating device are started together to heat the bottom and the side of the ceramic inner pot at the same time, thereby improving the heating efficiency and improving the uniformity of heat distribution on the bottom and the side of the ceramic inner pot, so that the ceramic inner pot is evenly heated.

[0020] In addition, a first pattern is provided on the transition section between the bottom wall of the outer pot and the side wall of the outer pot. On the one hand, the surface of the transition section has an uneven structure, which is more conducive to the accumulation of heat here. On the other hand, the setting of the first pattern also increases the surface area of ​​the transition section, thereby increasing the heat transfer area of ​​the transition section, so that more heat can be transferred to the ceramic inner pot by thermal radiation, thereby improving the heating effect of the part of the ceramic inner pot corresponding to the transition section, making each position of the ceramic inner pot heated more evenly, thereby improving the food cooking effect.

[0021] 2. As a preferred embodiment of the utility model, the ceramic inner pot is placed on the supporting boss, and there is a gap between the ceramic inner pot and the side wall of the outer pot. The first heating device is arranged on the lower side of the supporting boss to contact and transfer heat to the ceramic inner pot, and the second heating device surrounds the outer periphery of the side wall of the outer pot to radiate heat to the ceramic inner pot. The first pattern is located between the first heating device and the second heating device to form a heat collection area in the transition section. The first heating device and the second heating device are both formed on the outer pot, wherein the first heating device is in contact with the supporting boss, and the ceramic inner pot is also in contact with the supporting boss, and the heat of the first heating device is transferred to the ceramic inner pot through the supporting boss by contact heat transfer. The second heating device is located on the side wall of the outer pot, and there is a gap between the ceramic inner pot and the side wall of the outer pot, so the heat of the second heating device is first transferred to the side wall of the outer pot, and then transferred to the ceramic inner pot by heat radiation into the accommodating cavity. The heat that is not absorbed in time by the ceramic inner pot by the first heating device and the second heating device is transferred to the transition section through the outer pot, where heat converges and accumulates in the transition section under the action of the first texture. The heat is further radiated more efficiently to the bottom and side walls of the ceramic inner pot through the first texture, thereby solving the problem of uneven heating of the ceramic inner pot.

[0022] 3. As a preferred embodiment of the present invention, the first texture extends from the first heating device to the second heating device to form a heat channel extending from the bottom wall of the outer pot to the side wall of the outer pot. The first texture forms a heat channel extending from the bottom wall of the outer pot to the side wall of the outer pot, so that the heat of the first heating device located at the bottom wall of the outer pot and the second heating device located at the side wall of the outer pot are guided by the first texture, flow from both ends of the heat channel to the center, and then converge in the transition section. The transition section can better converge the heat from the first heating device and the second heating device, increase the heat at the transition section, and improve the heating effect on the ceramic inner pot.

[0023] 4. As a preferred embodiment of the utility model, the first pattern is bent and extended around the center of the outer pot. The first pattern is bent and extended to form a whirlwind shape, which helps the heat to flow upward from the surrounding of the ceramic inner pot in a whirlwind shape, thereby extending the heat flow path, increasing the contact time between the heat and the ceramic inner pot, increasing the heat absorbed by the ceramic inner pot through thermal radiation, and improving the heating effect of the ceramic inner pot.

[0024] 5. As a preferred embodiment of the utility model, the ceramic liner includes a bottom wall of the liner, a side wall of the liner, and an arc section located between the bottom wall of the liner and the side wall of the liner. A heat gathering area is formed between the arc section and the transition section, and the outer wall of the arc section is provided with a second texture. The second texture is provided on the outer surface of the arc section of the ceramic liner. Compared with the traditional smooth transition structure, the heating area of ​​the arc section is increased, and the heat absorbed at the arc section is further increased, thereby effectively improving the cooking efficiency. At the same time, the provision of the second texture also plays a structural strengthening role for the arc section. When the arc section is bumped, the second texture effectively disperses the stress, thereby increasing the anti-bumping ability of the ceramic liner in the arc section and extending the service life of the ceramic liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 This is a cross-sectional view of an electric stew pot according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 Magnified view of area A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of an electric stew pot in one embodiment of the utility model;

[0029] Figure 4 This is a schematic structural diagram of the bottom of a ceramic inner container in one embodiment of the utility model;

[0030] Figure 5 for Figure 1 Magnified view of area B.

[0031] in:

[0032] 1 outer pot; 11 outer pot bottom wall; 111 supporting boss; 112 bottom wall body; 12 outer pot side wall; 13 transition section; 14 first pattern; 141 heat gathering area; 15 heat channel;

[0033] 2 ceramic liner; 21 liner bottom wall; 22 liner side wall; 23 arc segment; 24 second pattern; 25 positioning protrusion;

[0034] 3 a first heating device;

[0035] 4 second heating device;

[0036] 5 cover plate; 51 cavity. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0039] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] like Figure 1 , Figure 2As shown, an electric stew pot comprises an outer pot 1 and a ceramic inner pot 2. The outer pot 1 forms a receiving cavity for placing the ceramic inner pot 2. The outer pot 1 has an outer pot bottom wall 11, an outer pot side wall 12, and a transition section 13 located between the outer pot bottom wall 11 and the outer pot side wall 12. The outer pot bottom wall 11 is provided with a first heating device 3, and the outer pot side wall 12 is provided with a second heating device 4. A part of the outer pot bottom wall 11 bulges upward to form a supporting boss 111 for supporting the ceramic inner pot 2. The transition section 13 surrounds the outer periphery of the supporting boss 111, and the transition section 13 is provided with a first pattern 14.

[0043] It is understandable that if Figure 1 As shown, the outer pot 1 is made of heat-conducting material (such as metal, etc.), and its bottom wall is partially raised to form a supporting boss 111 for supporting the ceramic inner pot 2. Specifically, as Figure 4 As shown, the bottom wall of the ceramic liner 2 is provided with a positioning protrusion 25 extending in the circumferential direction, which is used to cooperate with the outer edge of the supporting boss 111 to position the ceramic liner 2.

[0044] In the utility model, the outer pot bottom wall 11 is provided with a first heating device 3, and the outer pot side wall 12 is provided with a second heating device 4. During the cooking process, the first heating device 3 and the second heating device 4 are started together to heat the bottom and sides of the ceramic inner pot 2 at the same time, thereby improving the heating efficiency and being able to improve the uniformity of heat distribution at the bottom and sides of the ceramic inner pot 2, so that the ceramic inner pot 2 is evenly heated.

[0045] In addition, a first pattern 14 is provided on the transition section 13 between the outer pot bottom wall 11 and the outer pot side wall 12. On the one hand, the surface of the transition section 13 is made uneven, which is more conducive to the accumulation of heat here. On the other hand, the setting of the first pattern 14 also increases the surface area of ​​the transition section 13, thereby increasing the heat transfer area of ​​the transition section 13, so that more heat can be transferred to the ceramic inner pot 2 by thermal radiation, thereby improving the heating effect of the part of the ceramic inner pot 2 corresponding to the transition section 13, so that each position of the ceramic inner pot 2 is heated more evenly, thereby improving the food cooking effect.

[0046] The present invention does not limit the heating method of the first heating device 3 and the second heating device 4 for the ceramic inner container 2. Preferably, Figure 1 As shown, the ceramic inner pot 2 is placed on the supporting boss 111, and there is a gap between the ceramic inner pot 2 and the outer pot side wall 12. The first heating device 3 is arranged on the lower side of the supporting boss 111 to contact and transfer heat to the ceramic inner pot 2, and the second heating device 4 surrounds the outer periphery of the outer pot side wall 12 to radiate heat to the ceramic inner pot 2.

[0047] The first heating device 3 and the second heating device 4 are both formed on the outer pot 1, wherein the first heating device 3 is in contact with the support boss 111, and the ceramic inner pot 2 is also in contact with the support boss 111, and the heat of the first heating device 3 is transferred to the ceramic inner pot 2 via the support boss 111 by contact heat transfer. The second heating device 4 is located on the outer pot side wall 12, and there is a gap between the ceramic inner pot 2 and the outer pot side wall 12, so the heat of the second heating device 4 is first transferred to the outer pot side wall 12, and then transferred to the ceramic inner pot 2 by heat radiation into the accommodating cavity.

[0048] Furthermore, if Figure 1 , Figure 2 , Figure 3 As shown, the first pattern 14 is located between the first heating device 3 and the second heating device 4 to form a heat collection area in the transition section 13 .

[0049] The heat that is not absorbed by the ceramic inner pot 2 in time by the first heating device 3 and the second heating device 4 is transferred to the transition section 13 through the outer pot 1, where heat converges, and is accumulated in the transition section 13 under the action of the first texture 14, and is further radiated more efficiently to the bottom and side walls of the ceramic inner pot 2 through the first texture 14, thereby solving the problem of uneven heating of the ceramic inner pot 2.

[0050] Of course, in other embodiments, the second heating device 4 can also be arranged inside the outer pot side wall 12, so that the heat generated by the second heating device 4 is directly transferred to the ceramic inner pot 2 through thermal radiation, and part of the heat is transferred to the transition section 13 through the outer pot 1, thereby reducing the heat transfer path from the second heating device 4 to the ceramic inner pot 2 and improving the heat transfer efficiency.

[0051] The present invention does not limit the formation method of the first lines 14. For example, in one embodiment, the transition section 13 has a protrusion structure protruding toward the inside of the accommodating cavity, and the protrusion structure constitutes the first lines 14. In another embodiment, the transition section 13 is provided with a groove structure on one side facing the accommodating cavity, and the groove structure constitutes the first lines 14.

[0052] The convex structure and the concave structure are relative. For example, when the convex structure is provided in the transition section 13, a concave structure that is concave relative to the convex structure is naturally formed between each convex structure. Regardless of whether the convex or the concave is provided, the surface of the transition section 13 facing the accommodating cavity becomes uneven, thereby increasing the heat transfer area and improving the heat transfer efficiency.

[0053] It should be noted that as long as the first texture 14 is provided in the transition section 13, the effect of gathering heat and increasing the heat transfer area can be achieved. The present invention does not limit the structure of the first texture 14, which includes but is not limited to the following embodiments:

[0054] Implementation method 1: In this implementation method, Figure 2 , Figure 3 As shown, the first lines 14 extend in a direction from the first heating device 3 to the second heating device 4 to form a heat channel 15 extending from the outer pot bottom wall 11 to the outer pot side wall 12 .

[0055] The first lines 14 form a heat channel 15 extending from the outer pot bottom wall 11 to the outer pot side wall 12, so that the heat of the first heating device 3 located at the outer pot bottom wall 11 and the second heating device 4 located at the outer pot side wall 12 is guided by the first lines 14, flows from both ends of the heat channel 15 to the center, and then converges in the transition section 13. The transition section 13 can better converge the heat from the first heating device 3 and the second heating device 4, increase the heat at the transition section 13, and improve the heating effect on the ceramic inner pot 2.

[0056] Furthermore, if Figure 3 As shown, the first lines 14 extend in a curved manner around the center of the outer pot 1 .

[0057] The first pattern 14 bends and extends to form a whirlwind shape, so that the heat channel 15 also extends in a whirlwind shape, which helps the heat to flow upward from the four sides of the ceramic inner liner 2 along the heat channel 15 in a whirlwind shape, thereby extending the heat flow path, increasing the contact time between the heat and the ceramic inner liner 2, increasing the amount of heat absorbed by the ceramic inner liner 2 through thermal radiation, and improving the heating effect on the ceramic inner liner 2.

[0058] For example, in one embodiment, the first pattern 14 bends in a clockwise direction around the center of the outer pot 1 to form a whirlwind pattern in the transition section 13 .

[0059] Embodiment 2: In this embodiment, the first pattern 14 extends along the circumference of the outer pot 1 to surround at least a portion of the supporting boss 111 .

[0060] In this embodiment, the first pattern 14 is a plurality of concentrically arranged circular rings or circular arcs, surrounding the outer circumference of the support boss 111. Specifically, the first pattern 14 can be a plurality of complete circular rings, each of which is concentric and has a different radius, and each of which is arranged at intervals in the transition section 13 from the center of the outer pot 1 to the outside. For another example, on the same circumference, the first pattern 14 is a plurality of discontinuous circular arcs, or a plurality of circular arcs can be arranged on different circumferences to form the first pattern 14 together, which is not limited here.

[0061] It should be noted that the first pattern 14 in the present invention is at least located in the transition section 13, and may also extend to the outer pot bottom wall 11 and / or the outer pot side wall 12, so as to increase the heat collection area formed between the first pattern 14 and the ceramic inner pot 2, and improve the heat collection effect of the first heating device 3 at the bottom and the second heating device 4 on the side.

[0062] For example, as a preferred embodiment of the present invention, Figure 2 As shown, the outer pot bottom wall 11 further includes a bottom wall body 112 surrounding the outer periphery of the supporting boss 111 , a heat radiation space is formed between the bottom wall body 112 and the ceramic inner pot 2 , and the first pattern 14 extends from the bottom wall body 112 to the transition section 13 .

[0063] The bottom wall body 112 is located between the support boss 111 and the transition section 13, and the first heating device 3 is arranged at the support boss 111. Therefore, extending the first pattern 14 to the bottom wall body 112 can make the first pattern 14 closer to the first heating device 3, so as to better guide part of the heat transferred to the support boss 111 by the first heating device 3 to the transition section 13, thereby reducing the heat loss in the area between the support boss 111 and the transition section 13 and improving the heat utilization rate.

[0064] Of course, the first pattern 14 may also be extended upward to the outer pot side wall 12 to make it closer to the second heating device 4 , so as to better guide the heat of the second heating device 4 to the transition section 13 .

[0065] In a preferred embodiment, Figure 2 , Figure 3 , Figure 4 As shown, the ceramic liner 2 includes an inner liner bottom wall 21, an inner liner side wall 22 and an arc segment 23 located between the inner liner bottom wall 21 and the inner liner side wall 22. A heat gathering area 141 is formed between the arc segment 23 and the transition segment 13. The outer wall of the arc segment 23 is provided with a second pattern 24.

[0066] The second texture 24 is arranged on the outer surface of the arc section 23 of the ceramic inner pot 2. Compared with the traditional smooth transition structure, the heating area of ​​the arc section 23 is increased, and the heat absorbed at the arc section 23 is further increased, which effectively improves the cooking efficiency. At the same time, the arrangement of the second texture 24 also plays a structural strengthening role for the arc section 23. When the arc section 23 is bumped, the second texture 24 effectively disperses the stress, thereby increasing the anti-bumping ability of the ceramic inner pot 2 at the arc section 23 and extending the service life of the ceramic inner pot 2.

[0067] Specifically, Figure 3 , Figure 4As shown, the first lines 14 extend in a whirlwind shape, and the second lines 24 also extend in a whirlwind shape, wherein the bending angles of the first lines 14 and the second lines 24 can be the same or different, and furthermore, the bending directions of the first lines 14 and the second lines 24 can be the same or opposite.

[0068] Furthermore, if Figure 2 As shown, the first lines 14 and the second lines 24 have overlapping areas and offset areas, and the projections of the first lines 14 or the second lines 24 in the offset areas toward the outer pot 1 are located on the outer pot side wall 12 and the outer pot bottom wall 11 .

[0069] Specifically, Figure 2 As shown, the first lines 14 and the second lines 24 overlap in the heat collecting area 141, and are staggered between the outer pot side wall 12 and the outer pot bottom wall 11, so that the heat of the outer pot side wall 12 and the outer pot bottom wall 11 can be guided by at least one of the first lines 14 and the second lines 24 and enter the heat collecting area 141. In this way, the staggered arrangement of the first lines 14 and the second lines 24 increases the radiation range of the first lines 14 and the second lines 24, and does not need to separately set large-area lines on the outer pot 1 or the ceramic inner pot 2, thereby reducing the processing difficulty and saving costs.

[0070] Specifically, Figure 2 As shown, since the ceramic inner pot 2 is located above the outer pot bottom wall 11, and the bracket is smaller than the outer pot 1, the second lines 24 are located at a higher position than the first lines 14, the upper end of the second lines 24 is in the dislocation area, and the projection toward the outer pot 1 is located on the outer pot side wall 12, and the lower end is in the overlapping area, and the projection is located in the heat collection area 141. The upper end of the first lines 14 is located in the overlapping area, and the projection is located in the heat collection area 141, and the lower end is located in the dislocation area, and the projection is located on the outer pot bottom wall 11.

[0071] Preferably, if Figure 5 As shown, the electric stew pot further comprises a cover plate 5 arranged in the central area of ​​the supporting boss 111 , and the cover plate 5 and the upper surface of the supporting boss 111 together constitute a supporting surface for supporting the ceramic inner pot 2 .

[0072] In the present invention, the supporting surface for supporting the ceramic liner 2 is a split structure, and the cover plate 5 and the supporting boss 111 are split structures, so they can be processed and structurally designed separately, and then installed on the supporting boss 111. Therefore, the cover plate 5 can be stacked in the central area of ​​the supporting boss 111 to increase the thickness of the central area of ​​the supporting surface, thereby improving the strength of the area and reducing the possibility of deformation or damage, and the wear resistance of the central area of ​​the supporting surface can be improved to reduce wear. In addition, by adjusting the material of the cover plate 5, the cover plate 5 can have a higher heat transfer efficiency, so that the ceramic liner 2 is heated more evenly.

[0073] In addition, the provision of the cover plate 5 can also serve as a decoration for the bottom of the outer pot 1, thereby improving the appearance quality of the bottom of the outer pot 1 and enhancing the user experience.

[0074] Among them, the utility model does not limit the assembly method of the cover plate 5. For example, a sunken groove can be set in the center of the support boss 111, and the cover plate 5 covers the groove, so that there is a cavity 51 between the cover plate 5 and the support boss 111, and the cover plate 5 contacts the support boss 111 for heat transfer, so that the cover plate 5 is used to make up for the problem that the sinking groove cannot contact the ceramic liner 2 for heat transfer, resulting in low heat transfer efficiency here. For another example, a through hole can be opened in the central area of ​​the support boss 111, and the cover plate 5 can be set at the through hole. The cover plate 5 contacts the support boss 111 for heat transfer, and the cover plate 5 can also be used to make up for the problem that the through hole cannot contact the ceramic liner 2 for heat transfer, resulting in low heat transfer efficiency here. Furthermore, the cover plate 5 can be directly stacked on the surface of the support boss 111, so that the cover plate 5 and the support boss 111 abut each other up and down, thereby increasing the thickness of the central area of ​​the supporting surface, improving strength, reducing wear and reducing deformation risks.

[0075] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0076] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0077] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An electric stew pot, comprising an outer pot and a ceramic inner pot, wherein the outer pot forms a receiving cavity for placing the ceramic inner pot, characterized in that: The outer pot has an outer pot bottom wall, an outer pot side wall, and a transition section located between the outer pot bottom wall and the outer pot side wall. The outer pot bottom wall is provided with a first heating device, and the outer pot side wall is provided with a second heating device. Part of the outer pot bottom wall bulges upward to form a supporting boss for supporting the ceramic inner pot. The transition section surrounds the outer circumference of the supporting boss, and the transition section is provided with a first pattern.

2. The electric stew pot according to claim 1, characterized in that: The ceramic inner pot is placed on the supporting boss, and there is a gap between the ceramic inner pot and the side wall of the outer pot. The first heating device is arranged on the lower side of the supporting boss to contact and transfer heat to the ceramic inner pot. The second heating device surrounds the outer circumference of the side wall of the outer pot to radiate heat to the ceramic inner pot. The first pattern is located between the first heating device and the second heating device to form a heat collection area in the transition section.

3. The electric stew pot according to claim 1, characterized in that: The transition section has a protruding structure protruding toward the inside of the accommodating cavity, and the protruding structure constitutes the first texture; or, A groove structure is provided on a side of the transition section facing the accommodating cavity, and the groove structure constitutes the first texture.

4. The electric stew pot according to claim 1, characterized in that: The first pattern extends in a direction from the first heating device to the second heating device to form a heat channel extending from the bottom wall of the outer pot to the side wall of the outer pot.

5. The electric stew pot according to claim 4, characterized in that: The first lines are curved and extend around the center of the outer pot.

6. The electric stew pot according to claim 1, characterized in that: The first pattern extends along the circumference of the outer pot to surround at least a portion of the supporting boss.

7. The electric stew pot according to claim 1, characterized in that: The outer pot bottom wall also includes a bottom wall body surrounding the outer periphery of the supporting boss, a heat radiation space is formed between the bottom wall body and the ceramic inner pot, and the first pattern extends from the bottom wall body to the transition section.

8. The electric stew pot according to claim 1, characterized in that: The ceramic liner comprises an liner bottom wall, an liner side wall and an arc segment between the liner bottom wall and the liner side wall, a heat gathering area is formed between the arc segment and the transition segment, and a second pattern is arranged on an outer wall of the arc segment.

9. The electric stew pot according to claim 8, characterized in that: The first lines and the second lines have an overlapping area and a misaligned area, and the projections of the first lines or the second lines in the misaligned area toward the outer pot are located on the side wall of the outer pot and the bottom wall of the outer pot.

10. The electric stew pot according to claim 1, characterized in that: The electric stew pot further comprises a cover plate arranged in the central area of ​​the supporting boss, and the cover plate and the upper surface of the supporting boss together constitute a supporting surface for supporting the ceramic liner.

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